The Sauerbraten (Cube 2) engine is an advanced and complete originally open source engine available today, with many novel features unavailable elsewhere. Its main strength is its very productive content pipeline which is especially attractive to smaller companies making casual or serious games. Read more

An Open Source 68k Mac emulator for BeOS, Unix and AmigaOS. Basilisk II requires a copy of a 512K or 1MBMac ROM and a copy of MacOS 7.x or 8.x to run. Basilisk II is freeware and distributed under the GNU General Public License.

Dapple/NDapple are Apple ][ emulators, aiming to support a well-fitted Apple ][, ][+ or //e machine with 64K. It is (was) based on Marat Fayzullin's M6502 with 65C02 additions. Dapple ][ aims for a 128K //e.

Darling is an open source Darwin / OS X emulation layer for Linux. The aim is to achieve binary compatible support for Darwin / OS X applications on Linux, plus provide useful tools that will aid especially in application installation.

GSport is a portable (in the programming sense) Apple IIgs emulator, based on the KEGS cross-platform IIgs emulator by Kent Dickey. The base emulator builds and runs on all of the same platforms that KEGS did, and the new capabilities are being integrated as contributors have time and interest.

A hack on the great KEGS Apple IIGS emulator, which consists of implementing an SDL driver for video, sound, keyboard, and joystick. This should make the emulator portable to many more OSes (incl. BeOS, MacOS, Linux, Win32).

Mac-on-Linux is a linux/ppc program which makes it possible to run Mac OS in parallel with Linux. MOL is primarily intended to be used by those who run linux/ppc as their main operating system but still want to be able to run that occasional Mac OS application. Other possible applications include: development, hardware simulation, server applications, and compatibility testing.

Mini vMac emulates a Macintosh Plus, one of the earliest of Macintosh computers, sold between 1986 and 1990. It can run old Macintosh software that otherwise couldn't be used on recent machines, and so helps to preserve history, from the era when the modern user interface for computers was being defined.

PearPC is an architecture-independent PowerPC platform emulator capable of running most PowerPC operating systems. While the CPU emulation may be slow (1/500th or 1/15th, see above), the speed of emulated hardware is hardly impacted by the emulation; the emulated hard-drive and CDROM e.g. are very fast, especially with OS that support bus-mastering (Linux, Darwin, Mac OS X do).

vMac is a Macintosh emulator that currently emulates a Motorola 68000 based Apple Macintosh Plus. A ROM image from a Plus is required. It is planned to implement other 68000 machines, such as SEs and II series. Currently System 7.5.5 is the latest vMac can boot, which is the latest System a real MacPlus can boot. vMac runs in black an white, a larger screen and color is the next thing to be developed.